Page 52 - PD 1096 BASIC LAW

The National Building Code (P.D. 1096)

(c) Allowable areas – The area of individual plastic skylights shall not exceed 10.00 square
meters. The total aggregate area of plastics used in skylights, monitors, and sawtooth glazing shall
not exceed twenty percent of the floor area of the room or occupancy sheltered.

(d) Curb Requirements – Plastic skylights in roofs having a slope of less than 1 in 3 shall
have a 100 millimeters high curb. The curb may be omitted where a wire screen not smaller than No.
12 U.S. gauge with a mesh not larger than 25-millimeters is provided immediately below the skylight.
The screen shall be substantially mounted below the skylight.

SECTION 1605. Light-Transmitting Panels in Monitors and Sawtooth Roofs

(a) General – Where a fire-resistive rating is not required for the roof structure, and in all
buildings provided with an approved automatic fire-extinguishing system, approved plastics may be
used with or without sash as the light-transmitting medium in monitors and sawtooth; Except, that
plastics used in monitors or sawtooth roofs of Type II Construction shall be of materials appropriate to
be used according to flame-spread characteristics.
(b) Allowable Areas – The area of individual plastic glazing used in monitors and sawtooth
glazing shall not exceed 15.00 square meters. The total aggregate area of plastics used in skylights,
monitors, and sawtooth glazing shall not exceed twenty percent of the floor area of the room or
occupancy sheltered.
(c) Area Separation – The area of such plastic panels shall be separated from each other by
a section of incombustible material or by a section of the roofing material of the structure not less than
1.50 meters in length. The lower edge of the plastic material shall be at least 150 millimeters above
the surface of the adjoining roof surface.

SECTION 1606. Plastic Light Diffusers in Ceilings

(a) General – Ceiling light diffusers having an area greater than ten percent of any 10.00
square meters of room area shall be of approved plastics conforming to the requirements specified in
this Code.
(b) Installation – Plastic light diffusers shall be installed in such a manner that they will not
readily become detached when subjected to room temperature of 80C for 15 minutes, Except, for
plastic light diffusers which are installed in the first floor area of Group C Occupancies having egress
directly to the exterior of the building; and plastic light diffusers which are located between an
approved automatic Fire-extinguishing system and the area to be protected other than public corridors
for Group A, B, C, D, E, G, H, and I Occupancies if tests required by the Secretary have established
that such installation will not interfere with the efficient operation of such automatic fire-extinguishing
systems.

SECTION 1607. Partitions

Where partitions are not required to be of fire-resistive or incombustible construction,
approved plastics conforming to the requirements specified in this Code may be used.

SECTION 1608. Exterior Veneer

(a) General
Exterior veneer may be of approved plastic materials, and shall conform to the provisions of
this Section.

(b) Height
Plastic veneer shall not be attached to any exterior wall above the first storey: Provided, that
plastic veneer may be attached to exterior walls above the first storey of buildings located outside of
highly restrictive Fire Zones: Provided, further that the height of veneer is not in excess of 10.00
meters above the adjacent grade of elevation.

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